OFFTOPIC: Nazism and Racism is two different things.
OT: It seems you can't seperate fantasy / Reality, see a psychiatrist, like Aqua said. I can't understand how someone's not healing a guy/Girl, for there ingame race... Thats freaking retarded.

Well, the first thing I'd recommend trying is getting it through your head that Blood elves aren't real. They're polygons and textures, same as any race you play, and well.. refusing to heal/assist one simply because its a belf is probably one of the most retarded things I've ever read. Like, ever.

Stop playing or see a psychiatrist. Hating a fictional race that much is just messed up and clearly will lead to ruining people's experience ingame. Not healing assholes as punishment for their actions, sure, fine... But just cuz they're a certain race? Racism is one thing, but racism to a fictional race... Get help... Seriously... Or stop playing at all to avoid exposing yourself to blood elves...